Next-to-leading-order QCD corrections to the yields and polarisations of J/Psi and Upsilon directly produced in association with a Z boson at the LHC

Gong, Bin; Lansberg, Jean-Philippe; Lorce, Cédric; Wang, Jianxiong

doi:10.1007/JHEP03(2013)115

Article (Scientific journals)

Next-to-leading-order QCD corrections to the yields and polarisations of J/Psi and Upsilon directly produced in association with a Z boson at the LHC

Gong, Bin; Lansberg, Jean-Philippe; Lorce, Cédric et al.

2013 • In Journal of High Energy Physics, 1303, p. 115

Peer Reviewed verified by ORBi

Permalink
https://hdl.handle.net/2268/159233

DOI
10.1007/JHEP03(2013)115

Files (1)Send to Details Statistics Bibliography Similar publications

Files

Full Text

psi_Z-210113.pdf

Author preprint (323.17 kB)

Download

All documents in ORBi are protected by a user license.

Send to

RIS BibTex APA Chicago Permalink X Linkedin

Details

Abstract :

[en] We update the study of the production of direct $J/\Psi$ in association with a $Z$ boson at the Next-to-Leading Order (NLO) in $\alpha_S$ by evaluating both the yield differential in $P_T$ and the $J/\Psi$ polarisation in the QCD-based Colour-Singlet Model (CSM). Contrary to an earlier claim, QCD corrections at small and mid $P_T$ are small if one assumes that the factorisation and the renormalisation scales are commensurate with the $Z$ boson mass. As it can be anticipated, the t-channel gluon-exchange (t−CGE) topologies start to be dominant only for $P_T > m_Z/2$. The polarisation pattern is not altered by the QCD corrections. This is thus far the first quarkonium-production process where this is observed in the CSM. Along the same lines, our predictions for direct $\Upsilon + Z$ are also given.

Disciplines :

Physics

Author, co-author :

Gong, Bin

Lansberg, Jean-Philippe ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules

Lorce, Cédric ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules

Wang, Jianxiong

Language :

English

Title :

Next-to-leading-order QCD corrections to the yields and polarisations of J/Psi and Upsilon directly produced in association with a Z boson at the LHC

Publication date :

2013

Journal title :

Journal of High Energy Physics

ISSN :

1126-6708

eISSN :

1029-8479

Publisher :

Institute of Physics Publishing (IOP), Bristol, United Kingdom

Volume :

1303

Pages :

115

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 02 December 2013

Statistics

Number of views

31 (2 by ULiège)

Number of downloads

74 (0 by ULiège)

More statistics

Scopus citations^®

Scopus citations^®
without self-citations

OpenCitations

OpenAlex citations

Bibliography

M. Kramer, Quarkonium production at high-energy colliders, Prog. Part. Nucl. Phys. 47 (2001) 141 [ hep-ph/0106120 ] [ INSPIRE ]. (Pubitemid 32866617)
Quarkonium Working Group collaboration, N. Brambilla et al., Heavy quarkonium physics, CERN Yellow Report 2005-005, CERN, Geneva Switzerland (2005) [ hep-ph/0412158 ] [ INSPIRE ].
J. Lansberg, J/ψ, ψ ′ and Y production at hadron colliders: a review, Int. J. Mod. Phys. A 21 (2006) 3857 [ hep-ph/0602091 ] [ INSPIRE ].
J.M. Campbell, F. Maltoni and F. Tramontano, QCD corrections to J/ψ and Y production at hadron colliders, Phys. Rev. Lett. 98 (2007) 252002 [ hep-ph/0703113 ] [ INSPIRE ]. (Pubitemid 47139902)
P. Artoisenet, J. Lansberg and F. Maltoni, Hadroproduction of J/ψ and Y in association with a heavy-quark pair, Phys. Lett. B 653 (2007) 60 [ hep-ph/0703129 ] [ INSPIRE ].
B. Gong and J.-X. Wang, Next-to-leading-order QCD corrections to J/ψ polarization at Tevatron and Large-Hadron-Collider energies, Phys. Rev. Lett. 100 (2008) 232001 [ arXiv:0802.3727 ] [ INSPIRE ].
B. Gong and J.-X. Wang, QCD corrections to polarization of J/ψ and Y at Tevatron and LHC, Phys. Rev. D 78 (2008) 074011 [ arXiv:0805.2469 ] [ INSPIRE ].
P. Artoisenet, J.M. Campbell, J. Lansberg, F. Maltoni and F. Tramontano, Y production at Fermilab Tevatron and LHC energies, Phys. Rev. Lett. 101 (2008) 152001 [ arXiv:0806.3282 ] [ INSPIRE ].
C.-H. Chang, Hadronic production of J/ψ associated with a gluon, Nucl. Phys. B 172 (1980) 425 [ INSPIRE ].
R. Baier and R. Ruckl, Hadronic production of J/ψ and Y: transverse momentum distributions, Phys. Lett. B 102 (1981) 364 [ INSPIRE ].
R. Baier and R. Ruckl, Hadronic collisions: a quarkonium factory, Z. Phys. C 19 (1983) 251 [ INSPIRE ].
J. Lansberg, On the mechanisms of heavy-quarkonium hadroproduction, Eur. Phys. J. C 61 (2009) 693 [ arXiv:0811.4005 ] [ INSPIRE ].
N. Brambilla et al., Heavy quarkonium: progress, puzzles and opportunities, Eur. Phys. J. C 71 (2011) 1534 [ arXiv:1010.5827 ] [ INSPIRE ].
Z. Conesa del Valle et al., Quarkonium production in high energy proton-proton and proton-nucleus collisions, Nucl. Phys. Proc. Suppl. 214 (2011) 3 [ arXiv:1105.4545 ] [ INSPIRE ].
R. Li and J.-X. Wang, Next-to-leading-order QCD corrections to J/ψ(Y)+\gamma production at the LHC, Phys. Lett. B 672 (2009) 51 [ arXiv:0811.0963 ] [ INSPIRE ].
J. Lansberg, Real next-to-next-to-leading-order QCD corrections to J/ψ and Y hadroproduction in association with a photon, Phys. Lett. B 679 (2009) 340 [ arXiv:0901.4777 ] [ INSPIRE ].
A.K. Leibovich, ψ ′ polarization due to color octet quarkonia production, Phys. Rev. D 56 (1997) 4412 [ hep-ph/9610381 ] [ INSPIRE ].
C. Kim and E. Mirkes, Testing J/ψ production and decay properties in hadronic collisions, Phys. Rev. D 51 (1995) 3340 [ hep-ph/9407318 ] [ INSPIRE ].
S.J. Brodsky and J.-P. Lansberg, Heavy-quarkonium production in high energy proton-proton collisions at RHIC, Phys. Rev. D 81 (2010) 051502 [ arXiv:0908.0754 ] [ INSPIRE ].
J. Lansberg, Total J/ψ and Y production cross section at the LHC: theory vs. experiment, PoS(ICHEP2010) 206 [ arXiv:1012.2815 ] [ INSPIRE ].
J. Lansberg, Y production in pp and pA collisions: from RHIC to the LHC, arXiv:1209.0331 [ INSPIRE ].
PHENIX collaboration, A. Adare et al., J/ψ production versus transverse momentum and rapidity in p̄p collisions at √s=200 GeV, Phys. Rev. Lett. 98 (2007) 232002 [ hep-ex/0611020 ] [ INSPIRE ]. (Pubitemid 47139773)
STAR collaboration, B. Abelev et al., Y cross section in p + p collisions at √s=200 GeV, Phys. Rev. D 82 (2010) 012004 [ arXiv:1001.2745 ] [ INSPIRE ].
CDF collaboration, D. Acosta et al., Y production and polarization in p̄p collisions at √s=1.8 TeV,Phys. Rev. Lett. 88 (2002) 161802 [ INSPIRE ].
D0 collaboration, V. Abazov et al., Measurement of inclusive differential cross sections for Y1st production in p̄p collisions at √s=1.96 TeV, Phys. Rev. Lett. 94 (2005) 232001 [Erratum ibid. 100 (2008) 049902] [ hep-ex/0502030 ] [ INSPIRE ]. (Pubitemid 41636537)
CMS collaboration, Measurement of the inclusive Y production cross section in pp collisions at √s=7 TeV, Phys. Rev. D 83 (2011) 112004 [ arXiv:1012.5545 ] [ INSPIRE ].
ATLAS collaboration, Measurement of the Y1st production cross-section in pp collisions at √s=7 TeV in ATLAS, Phys. Lett. B 705 (2011) 9[ arXiv:1106.5325 ] [ INSPIRE ].
LHCb collaboration, Measurement of Y production in pp collisions at √s=7 TeV, Eur. Phys. J. C 72 (2012) 2025 [ arXiv:1202.6579 ] [ INSPIRE ].
LHCb collaboration, Measurement of J/ψ production in pp collisions at √s=7 TeV, Eur. Phys. J. C 71 (2011) 1645 [ arXiv:1103.0423 ] [ INSPIRE ].
ALICE collaboration, Rapidity and transverse momentum dependence of inclusive J/ψ production in pp collisions at √s=7 TeV, Phys. Lett. B 704 (2011) 442 [Erratum ibid. B 718 (2012) 692] [ arXiv:1105.0380 ] [ INSPIRE ].
F. Cooper, M.X. Liu and G.C. Nayak, J/ψ production in pp collisions at √s=200 GeV at RHIC, Phys. Rev. Lett. 93 (2004) 171801 [ hep-ph/0402219 ] [ INSPIRE ].
Z.-G. He, Y. Fan and K.-T. Chao, Relativistic correction to e + e - → J/ψ + gg at B factories and constraint on color-octet matrix elements, Phys. Rev. D 81 (2010) 054036 [ arXiv:0910.3636 ] [ INSPIRE ].
Y.-J. Zhang, Y.-Q. Ma, K. Wang and K.-T. Chao, QCD radiative correction to color-octet J/ψ inclusive production at B factories, Phys. Rev. D 81 (2010) 034015 [ arXiv:0911.2166 ] [ INSPIRE ].
Y.-Q. Ma, Y.-J. Zhang and K.-T. Chao, QCD correction to e + e - → J/ψgg at B factories, Phys. Rev. Lett. 102 (2009) 162002 [ arXiv:0812.5106 ] [ INSPIRE ].
B. Gong and J.-X. Wang, Next-to-leading-order QCD corrections to e + e - → J/ψ + gg at the B factories, Phys. Rev. Lett. 102 (2009) 162003 [ arXiv:0901.0117 ] [ INSPIRE ].
F. Maltoni et al., Analysis of charmonium production at fixed-target experiments in the NRQCD approach, Phys. Lett. B 638 (2006) 202 [ hep-ph/0601203 ] [ INSPIRE ].
S. Mao, M. Wen-Gan, L. Gang, Z. Ren-You and G. Lei, QCD corrections to J/ψ plus Z 0 -boson production at the LHC, JHEP 02 (2011) 071 [Erratum ibid. 12 (2012) 010] [ arXiv:1102.0398 ] [ INSPIRE ].
B. Gong and J.-X. Wang, QCD corrections to double J/ψ production in e + e - annihilation at √s=10.6 GeV, Phys. Rev. Lett. 100 (2008) 181803 [ arXiv:0801.0648 ] [ INSPIRE ]. (Pubitemid 351656915)
B. Gong and J.-X. Wang, Next-to-leading-order QCD corrections to e + e - → J/ψcc at the B factories, Phys. Rev. D 80 (2009) 054015 [ arXiv:0904.1103 ] [ INSPIRE ].
J.-X. Wang, Progress in FDC project, Nucl. Instrum. Meth. A 534 (2004) 241 [ hep-ph/0407058 ] [ INSPIRE ].
G. Duplancic and B. Nizic, Reduction method for dimensionally regulated one loop N point Feynman integrals, Eur. Phys. J. C 35 (2004) 105 [ hep-ph/0303184 ] [ INSPIRE ]. (Pubitemid 38830185)
B. Harris and J. Owens, The two cutoff phase space slicing method, Phys. Rev. D 65 (2002) 094032 [ hep-ph/0102128 ] [ INSPIRE ].
G. Altarelli, R.K. Ellis and G. Martinelli, Large perturbative corrections to the Drell-Yan process in QCD, Nucl. Phys. B 157 (1979) 461 [ INSPIRE ].
P. Artoisenet, F. Maltoni and T. Stelzer, Automatic generation of quarkonium amplitudes in NRQCD, JHEP 02 (2008) 102 [ arXiv:0712.2770 ] [ INSPIRE ].
Generate processes online using MadGraph 5 webpage, http://madgraph.hep. uiuc.edu/.
J. Pumplin et al., New generation of parton distributions with uncertainties from global QCD analysis, JHEP 07 (2002) 012 [ hep-ph/0201195 ] [ INSPIRE ].
J.M. Campbell, R.K. Ellis, F. Maltoni and S. Willenbrock, Associated production of a Z boson and a single heavy quark jet, Phys. Rev. D 69 (2004) 074021 [ hep-ph/0312024 ] [ INSPIRE ].
LHCb collaboration, Observation of double charm production involving open charm in pp collisions at √s=7 TeV, JHEP 06 (2012) 141 [ arXiv:1205.0975 ] [ INSPIRE ].
M. Beneke, M. Krämer and M. Vanttinen, Inelastic photoproduction of polarized J/ψ, Phys. Rev. D 57 (1998) 4258 [ hep-ph/9709376 ] [ INSPIRE ].
P. Faccioli, C. Lourenco, J. Seixas and H.K. Wohri, Towards the experimental clarification of quarkonium polarization, Eur. Phys. J. C 69 (2010) 657 [ arXiv:1006.2738 ] [ INSPIRE ].
P. Faccioli, Questions and prospects in quarkonium polarization measurements from proton-proton to nucleus-nucleus collisions, Mod. Phys. Lett. A 27 (2012) 1230022 [ arXiv:1207.2050 ] [ INSPIRE ].
CDF collaboration, D. Acosta et al., Search for associated production of Y and vector boson in p̄p collisions at √s=1.8 TeV, Phys. Rev. Lett. 90 (2003) 221803 [ INSPIRE ].
M. Kruse, A. Limosani and C. Zhou, private communications.
P.L. Cho and A.K. Leibovich, Color octet quarkonia production, 2, Phys. Rev. D 53 (1996) 6203 [ hep-ph/9511315 ] [ INSPIRE ].
E. Braaten, J. Lee and S. Fleming, Associated production of Y and weak gauge bosons at the Tevatron, Phys. Rev. D 60 (1999) 091501 [ hep-ph/9812505 ] [ INSPIRE ].
B. Gong, J.-X. Wang and H.-F. Zhang, QCD corrections to Y production via color-octet states at the Tevatron and LHC, Phys. Rev. D 83 (2011) 114021 [ arXiv:1009.3839 ] [ INSPIRE ].
S. Mao, M. Wen-Gan, L. Gang, Z. Ren-You and G. Lei, QCD corrections to J/ψ plus Z 0 -boson production at the LHC, JHEP 02 (2011) 071 [Erratum ibid. 12 (2012) 010] [ arXiv:1102.0398 ] [ INSPIRE ].